Seiko Cal. 3878 - 687

This Hand-Winding model from 1975 features a 41mm Hardlex-Coated Steel case. It features a White dial protected by a Mineral crystal and offers 130m of water resistance. [seikata-wm-cc40ce709077]

Also known as: Goldfeather, Bellmatic

Specifications

Movement

Hand-Winding

Case Material

Hardlex-Coated Steel

Case Width

41mm

Case Thickness

11.4mm

Lug Width

19mm

Crystal

Mineral

Bezel

Rotating

Water Resistance

130m

Dial Color

White

Jewels

28j

Frequency

21,600 bph

Power Reserve

56 hours

Year

1975

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